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A048901
Indices of hexagonal numbers which are also heptagonal.
+0
3
1, 247, 79453, 25583539, 8237820025, 2652552464431, 854113655726677, 275021944591525483, 88556212044815478769, 28514825256485992638055, 9181685176376444813974861, 2956474111967958744107267107
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 27 14:17 EST 2009. Contains 167569 sequences.
AT&T Labs Research
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